I am attaching a link to an updated Checklist of the species of the subfamily Vespinae (Hornets nad Yellowjackets). This checklist is based on Carpenter & Kojima (1997) with many new updates in terms of nomenclature, taxonomy, and overall distribution for may species.

I have done two photo catalogs of the Vespinae of the world (including subspecies) The one on Vespa and Provespa is incomplete in terms of subspecies photos but the yellowjacket checklist is fairly complete. I will add links to them here in this forum for anyone interested.